Air scrubber apparatus with incinerator

ABSTRACT

An air scrubber apparatus comprising a housing containing a burner compartment having burner apparatus therein adapted to incinerate gases entering into the housing, a scrubber compartment positioned adjacent the burner compartment and a gas discharge compartment connected to the scrubber compartment. A nozzle is mounted in the scrubber compartment to cool the heated gases coming from the burner compartment before the gases are discharged into the atmosphere.

[5 AIR SCRUBBER APPARATUS WITH INCINERATOR [76] Inventor: Trenton 0. Hall, 6500 NE. 2nd

' Ave., MiamLFla. 33138 [22 Filed: Apr. 20, 1972 21] Appl. No.: 245,749

52 us. CI. 23/277 c, 423/212, 126/299, 126/299 A, 98/115 1 55/DlG. 30, 55/1510.

511 hit. or. ..F23g 7/06,B01j1/0O [58] Field of Search...-.... 73/277 C; 126/299, 299 A;

98/1 15 K; 55/DlG. 36; 261/228, 229, 115

1111 3,796,550 1451 Mar. 12, 1974 3,243,116 3/1966 Dilt et a1. 23/253 A UX 3,330,231 7/1967 Spencer 1 10/8 A UX 3,405,690 10/1968 Burrus et al. 431/22 X Primary Examiner-James H; Tayman, Jr. Attorney, Agent, or Firm-Fleit, Gipple & Jacobson [57] ABSTRACT An air scrubber apparatus comprising a housing containing a burner compartment having burner apparatus therein adapted to incinerate gases entering into the housing, a scrubber compartment positioned adjacent the burner compartment and a gas discharge compartment connected to the scrubber compartment. A nozzle is mounted in the scrubber compartment to cool the heated gases coming from the burner [56] References Cited v UNITED STATES PATENTS compartment before the gases are discharged mm the atmosphere. 2,653,674 9/1953 Ortgies 23/277 C 3,407,879 10/1968 ORear 169/42 X 16 Claims, 5 Drawing Figures /97 l I I w,- I 2 0, 8 ,0: {Z fipam /A1 //////////J l1 I34 l 1 /0/ My f /54 I [if 437 -3 11 1 /26 I56 I z 0 0 v -5 0/ I i Q l/z Q 4M a W m PATENTEUIAR 12 I974 SHEEI 1 0F 2 AIR SCRUBBER APPARATUS WITH INCINERATOR The present invention generally relates to a gascleaning apparatus and more specifically to a gascleaning apparatus which cleans gases arising from a cooking apparatus or surface. The gases are cleaned by passing the gasses through incinerator means which incinerates smoke, grease and odors and cooling means which cools the heated incinerated gases.

The present invention is specifically envisioned as being used in connection with cooking apparatus so that smoke, grease, cooking odors and other condensable contaminants emanating from a cooking surface are eliminated.

The gases pass through a combustion chamber whose high temperatures totally incinerate remaining smoke and grease. The superheated gases leaving the combustion chamber are cooled by fogging the gases with cold water, to reduce their heat content so that they can be discharged into the atmosphere at a satisfactory temperature. I

The construction of the invention effects a quick and highly efficient elimination of the impurities contained inthe gases, thus preventing the impurities from being deposited into the atmosphere outside of the building in which the air scrubber is located as well as cutting down on thermal pollution. The present invention thus significantly contributes in cutting down air pollution.

There are many contaminate and grease-cleaning devices known in the prior art, but these devices are cumbersome and expensive to construct. While these known devices include apparatus for washing or collecting grease, it is extremely difficult to clean the interior of the devices and, due to the stringent fire regulations of many states, the standards set forth by fire insurance underwriters and the new anti-pollution laws of BRIEF DESCRIPTION OF THE DRAWINGS:

FIG. 1 is a plan view of the air scrubber apparatus with the top wall removed.

FIG. 2 is a longitudinal section of FIG. 1 taken along FIG. 3 is a reversed longitudinal section of FIG. 1 taken along lines 33. 1

FIG. 4 is a cross section of FIG. 1 taken along lines 4--4.

FIG. 5 is a cross section of FIG. 1 taken along lines 5-5'. I A

' DETAILED DESCRIPTION OF THE DRAWINGS The air scrubber as disclosed in FIGS. 1 through 5 generally comprises an air scrubber which is adapted to be mounted over a cooking appliance such as a broiler.

frying plate. or a french fryer to purify or clean gases which arise from a heat source carrying contaminants such as grease, smoke, fumes or other added materials.

A housing having an inlet end takes in gases emanating from the cooking appliances or foodstuffs being cooked, while the other end of the housing. has adischarge outlet adapted to be connected to a discharge duct 15. The discharge duct 15 can extend into the atmosphere outside the building but is preferably connected to the scrubber apparatus 101. In the preferred embodiment the scrubber apparatus is secured to the roof of the building and is connected to duct 15 which leads to gas inlet 112 or 113 of the combustion chamber cabinet of the scrubber apparatus.

The scrubber apparatus is a compact roof mounted burner assembly scrubber which is'connected to duct 15. The burner scrubber apparatus primarily comprises four separate compartments in a housing, the compartments generally comprising a combustion section 300, a scrubber and cooling section 400, a blower section 500 and control section 600.

The combustion section comprises a housing or cabinet 110 forming a chamber having gas inlets 112 and 113 which allow gaseous vapors from the ductwork to enter the chamber. The two gaseous vapor inlets l 12 and 113 as have been disclosed are alternate or combined arrangements depending on the particular job site conditions and either the bottom inlet 112 or the end connection inlet 113 may :be utilized. The incoming gaseous vapors are incinerated in the chamber byv heat originating from a primary burner 114 and asecondary burner 120. These burners are mounted to the combustion cabinet 110 and selectively feed heat into the combustion chamber 115 formed by the walls of cabinet 110. These burners are adaptable to the use of natural, manufactured or liquid petroleum gases as fuels. The fuel is carried to the burners from a fuel source by a main gas line 231. The primary burner 114 is separated from the seco-ndaryburner by a corrugated separation baffle member 126 and the secondary burner is in turn separated from the scrubber cabinet by a corrugated separation baffle member 127 and an internal baffle member 152. Both corrugated baffle members 126 and 127 and internal baffle member 152 are mounted to the walls of the combustion chamber cabinet 1 10 and provide-a flow path for the incinerated gases. The walls of both cabinets are preferably filled with an insulated material 111 and access to this insulation material 111 is accomplished by the utilization of an external cabinet access panel 128. The compartment 115 is fully insulated with insulation materials 1 11 having an additional benefit in that the inner walls of thecompartment 115 are cleaned due to the incineration of the super heated gases coming from the burners.

The gaseous .vapors in traveling through combustion chamber 115 with its extreme high temperatures have their contaminated particles of smoke and grease along with the odors totally incinerated. The primary burner 114 is energized at all times during cooking periods and is preferably automatically energized when thestove or cooking surface is turned on. The secondary burner 120 is only energized when high concentrations of smoke are present. This energization of the secondary burner 120 is controlled by means of photocells I96 and 197 positioned at the blower discharge. Controls and adjustments for the burners are located in the control section and will be described later in the specification.

After the super heated gas has passed through the combustion chamber 115 along the serpentine path created by baffle members 126, 127 and 152, the heated cleaned vapors pass into scrubber cabinet 150, housing the scrubber and cooling section. The cabinet 150 is also fully insulated with insulation materials 111 and the walls are the same ones as those which define chamber 115. The gases which have been raised to high temperatures upon entering the cabinet 150 are fogged by special impingement nozzles 154 with cold water thereby reducing their heat content. After this fogging, the gases are cooled to a satisfactory predetermined temperature and may be introduced into the blower section. Internal baffles 153 and 160 are located in the scrubber cabinet 150 and mounted thereto to respectively direct the heated gases into.the nozzle section and out of the scrubber cabinet 150 into the blower section. In addition the baffles are shaped to keep the vapors within the cabinet so that the vapors condense and drain through aperture 162 into sump pump cabinet 206. The sump pump cabinet 206 has mounted therein a sump pump 205 for discharging the collected water into a conduit 209, which leads to any designated area.

Thermostat means 210 is mounted on the apparatus and has a remote bulb 212 leading into the sump pump cabinet 206 and immersed in the liquid collected in the cabinet to determine its water temperature. The water in the cabinet is kept from freezing by the sump pump immersion heater 213 which is activated by a junction box 163 which activates and deactivates the immersion heater 213 depending on the reading determined by the thermostat means 210. If desired, the thermostat means can be directly connected to the immersion heater 213 to operate it. A drain 215 is connected to the sump pump cabinet 206 so that when the water reaches a predetermined level, excess water is drained off and disposed of in a suitable depository. The junction box 163 additionally controls the operation of the sump pump 205. The cold water which is discharged through the nozzles 154 enters through a conduit 161 through a pressure regulating valve which is controlled by junction box 163 responsive to blower temperature and burner firing. Pressure regulator 217 regulates the water pressure through nozzles 154. When the water leaves regulator 217 it passes into manifold 155 which leads to a inch l.D. Copper cold water line 156 which feeds nozzles 154. A pressure switch diaphragm 225 having a sensing tube 226 is electrically connected to a magnetic starter 222 which in turn is electrically connected to the primary burner 114 and secondary burner 120 by means of electrical conduits 229 and 230 so that the burners are shut off when a predetermined pressure is reached. Should the nozzles 154 clog at any time during operation of the apparatus, an additional safety device is activated by high temperatures on the negative side of the blower section 500 to automatically shut off the burners. This high temperature is sensed by a high ambient thermostat 236 which is electrically connected to the junction box 163, which is in turn electrically connected to the burners to automatically shut them off. The power source 219 for the electrical operation leads to the magnetic starter 222 and from there to other electrically operated units in the apparatus. The power source 219 can be shut off by an electric safety switch 220.

The control section has all the necessary controls required to control the apparatus with the exception of a master control switch located inside the building. Electric service is provided to both burners, the solenoid valve for water to the scrubber and cooling section, blower motor, photo-cell, safety pressure switch and magnetic starter. The water sump pump 205 is mounted to the control section and is utilized to convey F. heated water to a suitable area. A low ambient thermostat means 210 is connected to the immersion heater 213 located in the pump cabinet to prevent freeze up of the water collected in the cabinet. All the water used to cool the hot gases passing through the scrubber cabinet passes from the scrubber cooling section into the pump cabinet 206. A safety disconnect switch 220 is mounted in the cabinet for total fuel shut off for use while servicing. All the gas piping valves are contained in this cabinet and the cabinet has completely removable access panels for servicing.

The cooled gases pass from the scrubber section into the blower section 500. This section contains a high temperature application blower which is belt driven to drive out the cooled vapors. As the discharge is vertical, the clean, cool vapors are conveyed at high velocity into the atmosphere at this point. The blower section comprises a housing and a motor 188 mounted to the housing which is electrically connected to a power source through an electric conduit 193. The blower motor drives motor shaft 189 having double pulleys 191 mounted therein. The double pulleys have double belts 187 connected thereto which in turn drive or rotate double blower pulleys 186 which are mounted on blower wheel shaft 180. The blower wheel shaft is mounted in bearings 183 which are in turn mounted to blower wheel housing 203. The blower shaft turns a heat slinger 182 and a centrifugal wheel 178. The wheel 178 is positioned over a blower venturi 177 which covers the blower inlet opening 176. The cooled gases passing from the scrubber and cooling cabinet 150 pass into the blower inlet opening 176 through the blower venturi 177 into the centrifugal wheel 178 where the gases are urged outward through blower discharge opening 194 past the blower discharge screening 195. As the gas is discharged outwardly, it passes between a beam of light generated by the photo-cells 196 and 197 which are electrically connected by electric conduit 132 and are respectively mounted in pipe couplings 198 and 199. If smoke is discharged along with the cooled vapors, then the photo beam is interrupted causing an activation of the secondary burner 120. The interruption of the beam sends a pulse or signal along electric conduit 130 to the photo-cell controls 227 which in turn controls the secondary burner 120. The controls 227 start the burner so that additional incineration is provided for the incoming gases into the combustion chamber.

The blower motor and drive compartment is well ventilated with the parts easily accessible for servicing. A louvered air intake panel 134 is provided in the compartment for ventilation to the blower motor and drive mechanism. A removable access panel 136 is also provided for access to the blower area. The screening is placed over the discharge opening 194 to prevent debris from falling into the wheel.

in the present apparatus, there is no need for a fire extinguisher system for the scrubber apparatus in that the spray system in its present form is in itself an ade quate fire control system.

While the preferred embodiment of the invention has been disclosed, it is understood that the invention is not limited to such an embodiment, since it may be otherwise embodied in the scope of the appended claims.

What is claimed is:

1. An air scrubber apparatus of the type adapted to be mounted over a cooking apparatus such as a broiler to clean contaminated gases which arise from a heat source comprising a scrubber housing having gas inlet means, said housing being constructed to be adjustably oriented in a range from a horizontal position to a vertical position, said scrubber housing comprising a walled burner compartment, a burner means mounted to said walled burner compartment, a walled scrubber compartment adjacently connected to said walled burner compartment, drain means connected to ,said walled scrubber compartment, and a walled gas discharge compartment connected to said walled scrubber compartment, said burner means comprising at least one heating unit connected to said walled burner compartment and positioned outside of the gas flow stream within Said walled burner compartment, each said heating unit being adapted to incinerate incoming gases' entering said walled burner compartment through said inlet means, baffle means mounted inside said walled burner compartment, said baffle means being constructed to provide a serpentine flow path for the incoming gases to increase the dwell time of the incoming gases in said walled burner compartment and to direct incinerated gases into said walled scrubber compartment, said baffle means substantially separating each said heating unit from said walled scrubber compartment, a plurality of scrubber baffle members mounted to said walled scrubber compartment and extending into said walled scrubber compartment to form a serpentine gas flow path, a spray nozzle means mounted in said walled scrubber compartment between said scrubber baffle members with at least one scrubber baffie member being positioned on the downstream gas flow path side of said spray nozzle, said scrubber baffle members serving to condense spray discharged from said spray nozzle means and prevent liquid from entering said walled gas discharge compartment, gas discharge means connected to said walled gas discharge compartment, said gas discharge means comprising a blower apparatus, said blower apparatus comprising a housing, a motor mounted to said housing and gas propelling means connected to said motor by drive means and control means connected to said scrubber housing adapted to activate said burner means.

2. An airscrubber apparatus'adapted to be mounted to a building to receive contaminated gas emanating said wall means in said combustion chamber to form a serpentine gaseous flow path and slow the velocity of the incoming gases and separate said scrubber chamber from said combustion chamber, said baffle members being constructed to direct incinerated gases into said scrubber chamber, said scrubber chamber comprising wall means, a second baffle means mounted in said scrubber chamber to said wall means to form a sepertine flow path for saidgases, a drain means and a nozzle spray means mounted to said scrubber chamber wall means, said nozzle spray means extending into said scrubber chamber and adapted to discharge liquid in spray form for cleaning and cooling the incinerated gases passed from said combustion chamber, said second baffle means comprising at least one inwardly directed baffle member positioned in said scrubber chamber on each side of said nozzle spray means to direct the flow of incinerated gases through spray discharged by said nozzle spray means into wall means forming said discharge chamber while containing the spray from said nozzle spray means within said scrubber chamber, said drain means being adapted to carry liquid discharged by said nozzle spray means away from said scrubber chamber to liquid transporting means and discharge means mounted in said discharge chamberto the wall means of said discharge chamber, said discharge means comprising a blower means adapted to transport gases entering said scrubber housing through said scrubber housing into the atmosphere.

3. An air scrubber'apparatus adapted to receive and clean contaminated gases comprising a housing divided into a burner cabinet, a scrubber cabinet and a gas discharge cabinet, a section of said housing forming said burner cabinet and said scrubber cabinet being confrom a cooking apparatus comprising a housing having gas inlet means and outlet means-said housing forming a combustion chamber, a scrubber chamber communicating with said combustion chamber, a gas discharge chamber communicating with said scrubber chamber, and a control chamber, said combustion chamber comprising wall means, burner means mounted to said combustion chamber wall means, said burner means being adapted to incinerate incoming contaminated gases passing through said gas inlet means into said combustion chamber, a plurality of baffle members mounted to structed with insulated walls, gas inlet means connected to said burnercabinet and extending through at least one insulated wall of said, burner cabinet, burner means mounted to said burner cabinet outside of said insulated walls, said burner means comprising at least one burner unit adapted to discharge heat into said burner cabinet, each said burner unit being positioned out of the gas. flow path in said burner cabinet, spray nozzle means mounted in said scrubber cabinet, said spray nozzle means being directed away from said discharge cabinet to discharge liquid in a spray form into said gas flow .path, a plurality of baffle members separating said burner cabinet from said scrubber cabinet and said discharge cabinet to form a serpentine flow path for said gases, slowing said gases through said burner cabinet and said scrubber cabinet to allow incineration of the gases in the burner cabinet and substantially trap all of the liquid within the scrubber cabinet, drain means mounted to said scrubber cabinet,'a gas discharge means mounted in said gas discharge cabinet, said gas discharge means comprising a motor connected to said housing, a gas propelling apparatus connected to said motor, said discharge cabinet having an outlet cut therein to allow gases discharged from said gas propelling apparatus to exit into the atmosphere and burner control means mounted to said discharge cabinet, said burner control means being adapted to determine the composition of gases being discharged and to selectively energize at least one said burner unit when the discharged gas contains predetermined contaminate content.

4. An air scrubber apparatus of the type used to clean contaminated gases comprising a burner scrubber housing segmented into a combustion section cabinet provided with gas inlet means, a scrubber and cooling section cabinet positioned adjacent and communicating with said combustion section cabinet, a gas transporting section cabinet positioned adjacent and communicating with said scrubber and cooling section cabinet and a control section, a primary burner and a secondary burner mounted to said combustion cabinet, a plurality of baffle members mounted to the walls of said combustion cabinet, said baffle members being positioned in said combustion cabinet to provide a serpentine flow path to slow the velocity of the incoming gases and to substantially separate said primary burner, said secondary burner and said scrubber and cooling section cabinet, said scrubber and cooling section cabinet being formed by said burner scrubber housing and scrubber baffle members mounted to said scrubber and cooling section cabinet, said scrubber baffle members projecting inwardly into said scrubber cabinet, spray means mounted to at least one wall of said scrubber cabinet, said spray means comprising a plurality of spray nozzles, said scrubber baffle members being positioned in said scrubber cabinet to direct gases toward said spray means and into said gas transporter section cabinet and shaped to keep liquid discharged from spray means within the second cabinet so that the liquid can be carried off by a drain means connected to said cabinet, said gas transporter section cabinet comprising a housing having an inlet opening and discharge opening, a blower mounted to said housing and motor means connected to said blower and adapted to drive said blower, sensing means connected to said blower section housing in relation to said discharge opening, said sensing means being adapted to sense the composition of the discharged gases so that if particulate matter being discharged by said blower increases beyond a predetermined amount a signal is given to said control section which activates said secondary burner.

5. An air scrubber apparatus as claimed in claim 4, wherein said sensing means comprises at least one photo-electric cells.

6. An air scrubber apparatus as claimed in claim 1, wherein pressure sensing means is connected to said walled scrubber compartment, said pressure sensing means being adapted to sense pressure changes in the gases being discharged through the said walled scrubber compartment and to deactivate said burner means when a predetermined pressure is reached.

7. An air scrubber apparatus as claimed in claim 1, wherein thermostat means is positioned outside said scrubber compartment to sense the temperature of gases passing from said'scrubber compartment to. said discharge compartment, said thermostat means being connected electrically to controls, which control the operation of said burner means.

8. An air scrubber apparatus as claimed in claim 1 wherein said drain means leads to a sump chamber with liquid control means, said liquid control means comprising, a sump chamber temperature control means connected to said sump chamber, said sump chamber temperature control means comprising a thermostat means positioned in said sump chamber, said thermostat means being electrically connected to an immersion heater. mounted in said sump chamber, said thermostat means being set to activate said immersion heater when a predetermined temperature occurs in said sump chamber.

9. An air scrubber apparatus as claimed in claim 1 including means to automatically shut off said burner means, said means to automatically shut off said burner means comprising a thermostat mounted in said discharge chamber, said thermostat being activated by a predetermined temperature to automatically shut off said burner means.

10. An air scrubber apparatus as claimed in claim 9 wherein said means to automatically shut off said burner means comprises a pressure switch diaphragm having a sensing tube mounted in the secondary scrubber chamber, said pressure switch diaphragm being responsive to the flow of gases through said secondary scrubber chamber to shut off said burner means when a predetermined pressure is reached.

, 11. An air scrubber apparatus as claimed in claim 1 wherein said walled discharge compartment has a venturi mounted therein to direct gases passing from said secondary scrubber compartment chamber towarda gas propeller mounted in said discharge compartment, said gas propeller being operated by a motor means mounted in said discharge chamber.

12. An air scrubber apparatus as claimed in claim 4 including a liquid transporter means connected to said drain means, said liquid transporter means comprising a a sump pump cabinet connected to said scrubber and cooler cabinet, a conduit connected to said scrubber and cooler cabinet at said drain means and leading to said sump pump cabinet, a sump pump mounted to said sump pump cabinet, a second conduit means connected to said sump pump, a sump pump immersion heater mounted to said sump pump cabinet, a thermostat means connected to said burner scrubber housing, control means connecting said thermostat means with said sump pump immersion heater so that said immersion heater is activated and deactivated depending upon the predetermined value indicated by the thermostat means and drain means connected to said sump pump cabinet.

13. An air scrubber apparatus as claimed in claim 2 wherein a thermostat is mounted to said discharge compartment, said thermostat being connected to control means, said control means being in turn electrically connected to said burner means so that when a high predetermined temperature occurs in said discharge compartment said burner means is automatically shut off.

14. An air scrubber apparatus as claimed in claim 4 wherein said nozzle spray means is connected to a cold water conduit having a pressure regulator mounted thereon, a pressure switch diaphragm is connected to said pressure regulator, said pressure switch diaphragm having a sensing tube electrically connected to a starter mounted in said control chamber, said starter being electrically connected to said primary burner and said secondary burner so that when a predetermined pressure activates said pressure switch diaphragm and sensing tube said burners are automatically shut off.

15. An air scrubber apparatus as claimed in claim 4 wherein said primary burner is automatically energized when a cooking surface is turned on.

16. An air scrubber apparatus as claimed in claim 1 including at least one door mounted to said scrubber compartment adjacent said spray nozzles. 

2. An air scrubber apparatus adapted to be mounted to a building to receive contaminated gas emanating from a cooking apparatus comprising a housing having gas inlet means and outlet means said housing forming a combustion chamber, a scrubber chamber communicating with said combustion chamber, a gas discharge chamber communicating with said scrubber chamber, and a control chamber, said combustion chamber comprising wall means, burner means mounted to said combustion chamber wall means, said burner means being adapted to incinerate incoming contaminated gases passing through said gas inlet means into said combustion chamber, a plurality of baffle members mounted to said wall means in said combustion chamber to form a serpentine gaseous flow path and slow the velocity of the incoming gases and separate said scrubber chamber from said combustion chamber, said baffle members being constructed to direct incinerated gases into said scrubber chamber, said scrubber chamber comprising wall means, a second baffle means mounted in said scrubber chamber to said wall means to form a sepertine flow path for said gases, a drain means and a nozzle spray means mounted to said scrubber chamber wall means, said nozzle spray means extending into said scrubber chamber and adapted to discharge liquid in spray form for cleaning and cooling the incinerated gases passed from said combustion chamber, said second baffle means comprising at least one inwardly directed baffle member positioned in said scrubber chamber on each side of said nozzle spray means to direct the flow of incinerated gases through spray discharged by said nozzle spray means into wall means forming said discharge chamber while containing the spray from said nozzle spray means within said scrubber chamber, said drain means being adapted to carry liquid discharged by said nozzle spray means away from said scrubber chamber to liquid transporting means and discharge means mounted in said discharge chamber to the wall means of said discharge chamber, said discharge means comprising a blower means adapted to transport gases entering said scrubber housing through said scrubber housing into the atmosphere.
 3. An air scrubber apparatus adapted to receive and clean contaminated gases comprising a housing divided into a burner cabinet, a scrubber cabinet and a gas discharge cabinet, a section of said housing forming said burner cabinet and said scrubber cabinet being constructed with insulated walls, gas inlet means connected to said burner cabinet and extending through at least one insulated wall of said, burner cabinet, burner means mounted to said burner cabinet outside of said insulated walls, said burner means comprising at least one burner unit adapted to discharge heat into said burner cabiNet, each said burner unit being positioned out of the gas flow path in said burner cabinet, spray nozzle means mounted in said scrubber cabinet, said spray nozzle means being directed away from said discharge cabinet to discharge liquid in a spray form into said gas flow path, a plurality of baffle members separating said burner cabinet from said scrubber cabinet and said discharge cabinet to form a serpentine flow path for said gases, slowing said gases through said burner cabinet and said scrubber cabinet to allow incineration of the gases in the burner cabinet and substantially trap all of the liquid within the scrubber cabinet, drain means mounted to said scrubber cabinet, a gas discharge means mounted in said gas discharge cabinet, said gas discharge means comprising a motor connected to said housing, a gas propelling apparatus connected to said motor, said discharge cabinet having an outlet cut therein to allow gases discharged from said gas propelling apparatus to exit into the atmosphere and burner control means mounted to said discharge cabinet, said burner control means being adapted to determine the composition of gases being discharged and to selectively energize at least one said burner unit when the discharged gas contains predetermined contaminate content.
 4. An air scrubber apparatus of the type used to clean contaminated gases comprising a burner scrubber housing segmented into a combustion section cabinet provided with gas inlet means, a scrubber and cooling section cabinet positioned adjacent and communicating with said combustion section cabinet, a gas transporting section cabinet positioned adjacent and communicating with said scrubber and cooling section cabinet and a control section, a primary burner and a secondary burner mounted to said combustion cabinet, a plurality of baffle members mounted to the walls of said combustion cabinet, said baffle members being positioned in said combustion cabinet to provide a serpentine flow path to slow the velocity of the incoming gases and to substantially separate said primary burner, said secondary burner and said scrubber and cooling section cabinet, said scrubber and cooling section cabinet being formed by said burner scrubber housing and scrubber baffle members mounted to said scrubber and cooling section cabinet, said scrubber baffle members projecting inwardly into said scrubber cabinet, spray means mounted to at least one wall of said scrubber cabinet, said spray means comprising a plurality of spray nozzles, said scrubber baffle members being positioned in said scrubber cabinet to direct gases toward said spray means and into said gas transporter section cabinet and shaped to keep liquid discharged from spray means within the second cabinet so that the liquid can be carried off by a drain means connected to said cabinet, said gas transporter section cabinet comprising a housing having an inlet opening and discharge opening, a blower mounted to said housing and motor means connected to said blower and adapted to drive said blower, sensing means connected to said blower section housing in relation to said discharge opening, said sensing means being adapted to sense the composition of the discharged gases so that if particulate matter being discharged by said blower increases beyond a predetermined amount a signal is given to said control section which activates said secondary burner.
 5. An air scrubber apparatus as claimed in claim 4, wherein said sensing means comprises at least one photo-electric cells.
 6. An air scrubber apparatus as claimed in claim 1, wherein pressure sensing means is connected to said walled scrubber compartment, said pressure sensing means being adapted to sense pressure changes in the gases being discharged through the said walled scrubber compartment and to deactivate said burner means when a predetermined pressure is reached.
 7. An air scrubber apparatus as claimed in claim 1, wherein thermostat means is positioned outside said scrubber compartmenT to sense the temperature of gases passing from said scrubber compartment to said discharge compartment, said thermostat means being connected electrically to controls, which control the operation of said burner means.
 8. An air scrubber apparatus as claimed in claim 1 wherein said drain means leads to a sump chamber with liquid control means, said liquid control means comprising, a sump chamber temperature control means connected to said sump chamber, said sump chamber temperature control means comprising a thermostat means positioned in said sump chamber, said thermostat means being electrically connected to an immersion heater mounted in said sump chamber, said thermostat means being set to activate said immersion heater when a predetermined temperature occurs in said sump chamber.
 9. An air scrubber apparatus as claimed in claim 1 including means to automatically shut off said burner means, said means to automatically shut off said burner means comprising a thermostat mounted in said discharge chamber, said thermostat being activated by a predetermined temperature to automatically shut off said burner means.
 10. An air scrubber apparatus as claimed in claim 9 wherein said means to automatically shut off said burner means comprises a pressure switch diaphragm having a sensing tube mounted in the secondary scrubber chamber, said pressure switch diaphragm being responsive to the flow of gases through said secondary scrubber chamber to shut off said burner means when a predetermined pressure is reached.
 11. An air scrubber apparatus as claimed in claim 1 wherein said walled discharge compartment has a venturi mounted therein to direct gases passing from said secondary scrubber compartment chamber toward a gas propeller mounted in said discharge compartment, said gas propeller being operated by a motor means mounted in said discharge chamber.
 12. An air scrubber apparatus as claimed in claim 4 including a liquid transporter means connected to said drain means, said liquid transporter means comprising a a sump pump cabinet connected to said scrubber and cooler cabinet, a conduit connected to said scrubber and cooler cabinet at said drain means and leading to said sump pump cabinet, a sump pump mounted to said sump pump cabinet, a second conduit means connected to said sump pump, a sump pump immersion heater mounted to said sump pump cabinet, a thermostat means connected to said burner scrubber housing, control means connecting said thermostat means with said sump pump immersion heater so that said immersion heater is activated and deactivated depending upon the predetermined value indicated by the thermostat means and drain means connected to said sump pump cabinet.
 13. An air scrubber apparatus as claimed in claim 2 wherein a thermostat is mounted to said discharge compartment, said thermostat being connected to control means, said control means being in turn electrically connected to said burner means so that when a high predetermined temperature occurs in said discharge compartment said burner means is automatically shut off.
 14. An air scrubber apparatus as claimed in claim 4 wherein said nozzle spray means is connected to a cold water conduit having a pressure regulator mounted thereon, a pressure switch diaphragm is connected to said pressure regulator, said pressure switch diaphragm having a sensing tube electrically connected to a starter mounted in said control chamber, said starter being electrically connected to said primary burner and said secondary burner so that when a predetermined pressure activates said pressure switch diaphragm and sensing tube said burners are automatically shut off.
 15. An air scrubber apparatus as claimed in claim 4 wherein said primary burner is automatically energized when a cooking surface is turned on.
 16. An air scrubber apparatus as claimed in claim 1 including at least one door mounted to said scrubber compartment adjacent said spray nozzles. 